CN110593109A - Cast-in-place construction platform and construction method for hollow arch bridge hanging beam support - Google Patents
Cast-in-place construction platform and construction method for hollow arch bridge hanging beam support Download PDFInfo
- Publication number
- CN110593109A CN110593109A CN201910909919.5A CN201910909919A CN110593109A CN 110593109 A CN110593109 A CN 110593109A CN 201910909919 A CN201910909919 A CN 201910909919A CN 110593109 A CN110593109 A CN 110593109A
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- construction
- steel bars
- hanging beam
- bearing platform
- concrete bearing
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
The invention discloses a cast-in-place construction platform and a construction method of a hollow arch bridge hanging beam bracket. The invention has the beneficial effects that: this scheme is through the concrete cushion cap of being under construction on the arch ring, can provide horizontally holding surface for the construction of hanging the roof beam support to can reduce the construction degree of difficulty, improve the efficiency of construction, and be favorable to guaranteeing construction safety.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a cast-in-place construction platform and a construction method of a hollow arch bridge hanging beam bracket.
Background
The hollow arch bridge is one member of arch bridge family, has the common characteristics of arch bridges and has the unique characteristics of the arch bridge. The bridge integrates the advantages of an arch and a beam, combines two basic structural forms of the arch and the beam together to bear load together, and fully exerts the structural performance and the combined action of bending and arch compression of the beam.
However, the hanging beam of the hollow arch bridge is influenced by the structure of the arch ring, and the bottom end of the hanging beam support needs to be supported on the arch back of the arch ring in the process of erecting the hanging beam support.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a cast-in-place construction platform and a construction method of a hollow arch bridge hanging beam support, which are used for constructing the hanging beam support, improve the safety of the construction process and are beneficial to improving the moisture efficiency.
The technical scheme adopted by the invention for solving the problems is as follows: a cast-in-place construction platform of a hollow arch bridge hanging beam support comprises a plurality of through-length steel bars arranged on an arch ring, a plurality of post-planting steel bars arranged on the arch ring, stirrups arranged on the through-length steel bars, and a concrete bearing platform poured on the arch ring by utilizing the through-length steel bars.
Further, in order to better realize the invention, an isolation film is arranged between the concrete bearing platform and the arch ring.
Further, in order to better realize the invention, the upper surface of the concrete bearing platform is a horizontal plane.
A construction method of a hollow arch bridge hanging beam support comprises the steps of constructing a plurality of concrete bearing platforms with horizontal upper surfaces on an arch ring after the construction of the arch ring is finished, erecting a support on the concrete bearing platforms, and installing a hanging beam mold for pouring hanging beams on the support.
Further, in order to better implement the invention, the construction of the concrete bearing platform comprises the following steps:
step S1: constructing post-planting reinforcing steel bars and full-length reinforcing steel bars on the arch ring, and keeping the post-planting reinforcing steel bars and the full-length reinforcing steel bars vertical;
step S2: paving an isolation film within the range of pouring the concrete bearing platform on the arch ring, and enabling the width of the isolation film to be larger than the width corresponding to the concrete bearing platform;
step S3: after the isolation film is laid, a bearing platform template of the concrete bearing platform is built, and concrete is poured;
step S4: and after the cast concrete bearing platform reaches more than 70% of the design strength, a hanging beam support is erected.
The beneficial effect that this scheme obtained is:
this scheme is through the concrete cushion cap of being under construction on the arch ring, can provide horizontally holding surface for the construction of hanging the roof beam support to can reduce the construction degree of difficulty, improve the efficiency of construction, and be favorable to guaranteeing construction safety.
Drawings
FIG. 1 is a partial schematic view of a hollow arch bridge;
fig. 2 is a schematic structural diagram of the present solution.
Wherein: 1-post-planting steel bars, 2-concrete bearing platforms, 3-isolating membranes, 4-steel bar planting hole filling agents, 5-through long steel bars, 6-stirrups, 7-arch rings and 8-hanging beams.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.
Example 1:
in this embodiment, a cast-in-place construction platform of a hollow arch bridge hanging beam support includes a plurality of through-length steel bars 5 arranged on an arch ring 7 that has completed construction, a plurality of post-planting steel bars 1 arranged on the arch ring 7, stirrups 6 arranged on the through-length steel bars 5, and a concrete cushion cap 2 poured on the arch ring 7 by using the through-length steel bars 5.
The full-length steel bars 5, the post-planted steel bars 1 and the stirrups 6 are utilized to form a steel bar mesh cage for pouring concrete, concrete templates are built around the steel bar mesh cage, the concrete templates are made to surround to form the shape of the concrete bearing platform 2, and the concrete is poured in the concrete templates to form the concrete bearing platform 2. A plurality of concrete caps 2 can be provided on the arch ring 7 as necessary.
The upper surface level of the concrete bearing platform 2 is enabled to be convenient for building a hanging beam support and a hanging beam template of a construction hanging beam on the concrete bearing platform 2, construction based on the arc-shaped surface of the arch ring 7 is avoided, and therefore safety performance during construction can be improved, construction difficulty is reduced, and stability construction efficiency of the hanging beam support is improved.
In this embodiment, post-planting reinforcing bar 1 adopt D28 mm's reinforcing bar and set up two rows, the row spacing is 100mm, the 1 interval of post-planting reinforcing bar in each row is 150mm, each row sets up four post-planting reinforcing bars 1.
Example 2:
on the basis of the above embodiment, in this embodiment, before the concrete is poured, after the construction of the full-length steel bars 5 and the post-planted steel bars 1 is completed, the isolation film 3 is laid within the range of the concrete pouring, so as to avoid the direct connection between the concrete bearing platform 2 and the arch ring 7, and facilitate the detachment of the concrete bearing platform 2 after the construction of the hanging beam 8 is completed.
After the construction of the hanging beam 8 is completed, the concrete bearing platform 2, the through long steel bars 5, the post-planting steel bars 1 and other structures are required to be dismantled to avoid influencing the appearance of the bridge, the through long steel bars 5 and the post-planting steel bars 1 can leave holes after being dismantled, and the rib planting hole filler 4 is added in the holes to fill the holes, so that the arch rings 7 are kept complete, and the corrosion caused by water accumulation in the holes is avoided.
The foregoing is only a preferred embodiment of the present invention, and the present invention is not limited thereto in any way, and any simple modification, equivalent replacement and improvement made to the above embodiment within the spirit and principle of the present invention still fall within the protection scope of the present invention.
Claims (5)
1. The utility model provides a cast-in-place formula construction platform of empty stomach arched bridge hanging beam support which characterized in that: the concrete pile comprises a plurality of through-length steel bars (5) arranged on an arch ring (7), a plurality of post-planting steel bars (1) arranged on the arch ring (7), stirrups (6) arranged on the through-length steel bars (5), and a concrete bearing platform (2) poured on the arch ring (7) by utilizing the through-length steel bars (5).
2. The cast-in-place construction platform of the hollow arch bridge hanging beam bracket as claimed in claim 1, wherein: and an isolating membrane (3) is arranged between the concrete bearing platform (2) and the arch ring (7).
3. The cast-in-place construction platform of the hollow arch bridge hanging beam bracket as claimed in claim 1, wherein: the upper surface of the concrete bearing platform (2) is a horizontal plane.
4. A construction method of a hollow arch bridge hanging beam bracket is characterized in that: after the construction of the arch ring is finished, a plurality of concrete bearing platforms (2) with horizontal upper surfaces are constructed on the arch ring, a support is erected on the concrete bearing platforms (2), and a hanging beam mold for pouring hanging beams is installed on the support.
5. The construction method of the hollow arch bridge hanging beam bracket as claimed in claim 4, wherein: the construction concrete bearing platform (2) comprises the following steps:
step S1: constructing post-planting steel bars (1) and full-length steel bars (5) on the arch ring, and keeping the post-planting steel bars (1) and the full-length steel bars (5) vertical;
step S2: paving an isolation film (3) in the range of pouring the concrete bearing platform (2) on the arch ring, and enabling the width of the isolation film (3) to be larger than the corresponding width of the concrete bearing platform (2);
step S3: after the isolation film (3) is laid, a bearing platform template for pouring the concrete bearing platform (2) is built, and concrete is poured;
step S4: and after the cast concrete bearing platform (2) reaches more than 70% of the design strength, a hanging beam support is erected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910909919.5A CN110593109A (en) | 2019-09-25 | 2019-09-25 | Cast-in-place construction platform and construction method for hollow arch bridge hanging beam support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910909919.5A CN110593109A (en) | 2019-09-25 | 2019-09-25 | Cast-in-place construction platform and construction method for hollow arch bridge hanging beam support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110593109A true CN110593109A (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910909919.5A Pending CN110593109A (en) | 2019-09-25 | 2019-09-25 | Cast-in-place construction platform and construction method for hollow arch bridge hanging beam support |
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| CN (1) | CN110593109A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0849214A (en) * | 1994-05-30 | 1996-02-20 | Okabe Co Ltd | Construction method for installing arch concrete bar arrangement body |
| CN101824800A (en) * | 2010-04-28 | 2010-09-08 | 中铁三局集团有限公司 | Method for construction of bridge cast-in-situ pre-stressed concrete continuous beam |
| CN102296843A (en) * | 2011-05-10 | 2011-12-28 | 欧阳甘霖 | Multi-arch multilayer plant-separation type parking device |
| CN204112242U (en) * | 2014-09-03 | 2015-01-21 | 武汉二航路桥特种工程有限责任公司 | A kind of Concrete Filled Steel-tube Truss Arch Bridge suspender replacement special tool boom system |
| CN105887703A (en) * | 2016-06-06 | 2016-08-24 | 江苏华通工程检测有限公司 | Replacing device for concrete tied arch bridge flexible suspension rod and using method thereof |
| CN206581148U (en) * | 2016-12-28 | 2017-10-24 | 中铁十四局集团第二工程有限公司 | A kind of Cast-in-situ Beam is without Temporary Piers support |
-
2019
- 2019-09-25 CN CN201910909919.5A patent/CN110593109A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0849214A (en) * | 1994-05-30 | 1996-02-20 | Okabe Co Ltd | Construction method for installing arch concrete bar arrangement body |
| CN101824800A (en) * | 2010-04-28 | 2010-09-08 | 中铁三局集团有限公司 | Method for construction of bridge cast-in-situ pre-stressed concrete continuous beam |
| CN102296843A (en) * | 2011-05-10 | 2011-12-28 | 欧阳甘霖 | Multi-arch multilayer plant-separation type parking device |
| CN204112242U (en) * | 2014-09-03 | 2015-01-21 | 武汉二航路桥特种工程有限责任公司 | A kind of Concrete Filled Steel-tube Truss Arch Bridge suspender replacement special tool boom system |
| CN105887703A (en) * | 2016-06-06 | 2016-08-24 | 江苏华通工程检测有限公司 | Replacing device for concrete tied arch bridge flexible suspension rod and using method thereof |
| CN206581148U (en) * | 2016-12-28 | 2017-10-24 | 中铁十四局集团第二工程有限公司 | A kind of Cast-in-situ Beam is without Temporary Piers support |
Non-Patent Citations (1)
| Title |
|---|
| 贾连科: "南盘江特大桥拱上梁支架法施工技术", 《石家庄铁路职业技术学院学报》 * |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191220 |
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| RJ01 | Rejection of invention patent application after publication |